Last year Colorado came out with the no louder then OEM law..... Cat back kits are a $500 ticket as I found out for a very mellow one on my parts runner and its a 2015.

I have a tuned ecm/pcm on a newer mopar and a peddle commander and was told they are illegal as well. They didnt see my stealth cold air intake or im sure it would of been brought up.

It seems some states are shooting for if its not all oem its wrong. Cant even add fog lights or like things.

I have one 76 and im wondering if I should buy the 3 inch in/out magnaflow cats and put them on preemptively even though im in a no smog county.

But I am on the state line and have a farm in KS so I may just swap up homes and plate all in KS.

Things are getting really stupid and only going to get worse. If people do not think our old rigs will not be taxed and regulated or even outlawed they might think again.